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Temperature Dependence of the Phosphorescence Spectra of a Vanadyl Protoporphyrin Complexстатья
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 4 марта 2026 г.
- Авторы: Chernyad'ev A.Yu, Kotenev V.A., Tsivadze A.Yu
- Журнал: Protection of Metals and Physical Chemistry of Surfaces
- Том: 61
- Номер: 5
- Год издания: 2025
- Издательство: Pleiades Publishing, Ltd
- Местоположение издательства: Road Town, United Kingdom
- Первая страница: 1034
- Последняя страница: 1039
- DOI: 10.1134/S2070205125701011
- Аннотация: Upon an interaction of protoporphyrin IX free base with an excess of vanadyl sulfate in refluxing dimethylformamide, corresponding vanadyl protoporphyrin is obtained in a high yield. The structure of vanadyl protoporphyrin is determined by the data of EAS and mass spectrometry. An analysis of the temperature dependence of the phosphorescence spectra of a polystyrene film including vanadyl protoporphyrin is conducted upon thermostating using a cryostat. It is found that, throughout the entire range of temperatures of from –195 to 25°C, the ratio of the intensity of transitions of phosphorescence 4T1–2S0 and 2T1–2S0 changes gradually and completely reversibly without hysteresis effects. An analysis technique of phosphorescence spectra of vanadyl protoporphyrin for the determination of temperature by the shape of a phosphorescence spectrum that contains one pronounced maximum with a set of shoulders in the red visible region is proposed.
- Добавил в систему: Чернядьев Андрей Юрьевич